Main Menu

Secondary Menu

Author Options:

Best way to create an automatic lobby door opener? Answered

I live on a third floor of an apartment building, and tired of using a key to open the lobby door. I was thinking of using Arduino and something similar to a car alarm remote to make the arduino open the door for 30seconds while I get to it.

What do you guys think is the best way to do this? is my idea even possible?

3 Replies

If in the affirmative, an RFID tag in your pocket would be detected by a uP which would authenticate and pull the latch on your lobby door, or better an RF transmitter to your apartment Xbee receiver pushes your ope button.

Xbee is an RF transmitter and the 433 MHz RFtransceiver is another of many devices that can communicate up to a mile with a low cost uP stamp or arduino sending a coded message to your apartment and another identical uP that receives and decodes only your message. Then a relay or semiconductor will be wired in parallel with the open button in your apartment. Just like I can unlock my Subaru from 600' away.